init.hikey.rc & BoardConfig.mk: enable cpuset correctly

set the cpu cores for cpuset correctly, otherwise there will
be only cpu0 used for foreground tasks

Change-Id: Ia6c951649a17f2dbd5fcf828d60ac787fb61f10f
Signed-off-by: Yongqin Liu <yongqin.liu@linaro.org>
diff --git a/BoardConfig.mk b/BoardConfig.mk
index d318cd9..4309696 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -49,6 +49,9 @@
 BOARD_FLASH_BLOCK_SIZE := 131072
 TARGET_USE_PAN_DISPLAY := true
 
+# enable to use the CPUSETS feature
+ENABLE_CPUSETS := true
+
 BOARD_SEPOLICY_DIRS := device/linaro/hikey/sepolicy
 
 ifeq ($(HOST_OS), linux)